CaratHunter
Plans
Emerald|Natural|GIA

0.31ct H SI2 Emerald Natural Diamond

EX • H/SI2 • GIA 1559419840

Certificate GIA 1559419840

Diamond specifications and retailer prices

From $317 AUD
$223 USD
As of October 29, 2026
Save $409 AUD (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,436 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.31ct natural emerald diamond

This 0.31ct natural emerald sits in the sub-half-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559419840. Listed at 13 retailers as of October 26, 2026, with a 129% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.31
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559419840
Dimensions4.41 × 3.20 × 2.18 mm
L/W Ratio1.38
Key to symbols
Crystal
Top View
4.41 mm3.20 mm0.31 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559419840
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,436 AUD|Low: $315 AUD|High: $1,436 AUD|Avg: $545 AUD|+1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 12$317 AUD
Retailer 10$342 AUD
Retailer 11$353 AUD
Retailer 13$366 AUD
Retailer 5$408 AUD
Retailer 7$427 AUD
Retailer 9$435 AUD
Retailer 2$482 AUD
Retailer 3$572 AUD
Retailer 6$638 AUD
Retailer 8$644 AUD
Retailer 4$727 AUD
NZ Jewellers$1,436 AUD

38 data points across 13 retailers

13 retailers$317 AUD to $727 AUD

A
Cheapest Retailer
-
$317 AUD
$223 USD
A
Retailer 2
-
$342 AUD
$240 USD
View
B+
Retailer 3
-
$353 AUD
$248 USD
View
B+
Retailer 4
-
$366 AUD
$257 USD
View
Retailer 5
-
$408 AUD
$287 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$427 AUD
$300 USD
View
B+
Retailer 7
-
$435 AUD
£240 GBP
View
B
Retailer 8
-
$482 AUD
£267 GBP
View
B
Retailer 9
-
$572 AUD
$402 USD
View
B
Retailer 10
-
$638 AUD
€427 EUR
View
B
Retailer 11
-
$644 AUD
£356 GBP
View
B
Retailer 12
-
$727 AUD
£402 GBP
View
Most Expensive
NZ Jewellers
4bc67b42-1df9-4f5d-a07f-dcb4dfeead12 · Oct 30
$1,436 AUD
$1,009 USD
View
Price under review
12 more retailers have this diamond
Prices start from $317 AUDSave up to $409 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.31ct Emerald
$317 AUD